Police have not released any details about the connection between Karp and the victims. A court file for Karp was not available Friday. A background check run through the Maine Bureau of Identification shows he has no criminal history in the state.
On his Facebook page, Karp describes himself as a tattoo artist at Almost Famous Tattoos & Piercings, which is next to the shooting scene, and has several pictures showing he is a member of the Outlaws motorcycle club.
Karp is charged in the murder of Susan McHugh, 54, of Gray, at about 8:45 p.m. on July 30. She was shot at the 1110 block of Forest Avenue along with a 45-year-old New Hampshire man, a 48-year-old Yarmouth man and a 51-year-old Gray man.
All three other victims have since been treated for their injuries and released from a local hospital. Police have not made any other arrests yet, but said the investigation continues. “This is just the beginning, as we will continue to work with the Office of the Maine Attorney General to build our case as we look for justice for Ms. McHugh,” Dubois said.